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Finding the Fourth Proportional to 64,944.79, 89,644.22 and 38,098.15

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Solution

The fourth proportional to 64,944.79, 89,644.22 and 38,098.15 is: 52,587.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,944.79 : 89,644.22 = 38,098.15 : x
  2. Step 2: Convert to fraction form
    64,944.79/89,644.22 = 38,098.15/x
  3. Step 3: Cross multiply
    64,944.79x = 89,644.22 × 38,098.15
  4. Step 4: Simplify right side
    64,944.79x = 3,415,278,668.46
  5. Step 5: Solve for x
    x = 3,415,278,668.46/64,944.79
  6. Step 6: Final answer
    x = 52,587.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.